I load a .125 grain truncated cone on top of 3.3 grains of Red Dot. It's a pretty reasonable load. Not too hot and not too puny. I think that it pushes right at 1000 fps the last time that I chronied them but don't quote me on that.
We shoot with a lot of people that use .357 rather than .38 cases. They don't load them hot though. Of course SASS does have a max fps so you can't go too hot with match ammo anyway.